Roller bearing journal box



Feb. 23, 1932. o. F. PACKER ROLLER BEARING JOURNAL BOX I 2 Sheets-Sheet 1 Filed Feb. 11. 1927 I .5206725071- '00 waZdfac-kz Feb. 23, 1932. QF1PAKER 1,846,977

ROLLER BEARING JOURNAL BOX Filed Feb. 11, 1927 2 Sheets-Sheet 2 OJwwI I i izy jiwerzzfir Patented Feb. 23, 1932 I E- STATES PATENT oFncE OBWAI-D I. PACKER, F LAW'I'ON, MICHIGAN, ASSIGNOB TO STEABNS-S'IAFZFORD ROLLER BEARING OF LAWZTON, MICHIGAN, AGORPORATION OF DELAWARE ROLIIER BEARING JOURNAL x Application filed February 11, 1927. Serial 110,167,410.

This invention relates to improvements in roller bearing journal boxes and mountings therefor.

One object of mv invention is to provide an of the bushing in such manner that the cap in;

coniunction with the cover of the box aids in holding the bushing from working outward ofi the end of the spindle.

A still further obj ect of my invention is to have the bushing extend the full length of the spindle with the inner end of the bushing.

in contact with the hub of the wheel so that in conjunction with the end thrust mechanism at the front 'of the spindle the wheel is prevented from moving into contact with the box or its parts to do injury.

Another object of my invention is to pro vide a simple and eflic'ient form of, packing {)neans about the spindle at the rear end of the ters hereinafter described and. claimed.

In the accompanying drawings- Fig. 1 is a front elevational view of ajournal box constructed and mounted. in accordance with my invention Fig. 2.is an enlarged longitudinal vertical sectional 'view taken through the box on line 2-2.of Fig. 1;

Fig. '3 is an end view of the box with the cover removed; and

Fig. 4 is an inside view of .the covers In the drawings, 1 indicates the body of and extends'the the box and 2 the axle spindle extending into the box through its rear end. Disposed in the box. are inner and outer hardened bushings 3,4, preferably made {of steel. The inner bushing 3 has a ressed fit on the spindle 2 ll lengthof the spindle, as shown in Fig. 2. The inner end of the bush ing has contact with the hub 5 of the wheel 6.

Located between these bushings is an antifriction bearing means preferably in the form of bearing rollers 7,7. In the particular construction shown in the drawings, two groups or series of these rollers are employed,

3 with the rollers in one group staggered with respect to those in the other and retained in a suitable cage embracing the outer rings 8, 8 and an iiitermediate ring 9. The outer bushing 1 may have a tight fit in the box, the latter being shaped to receive and retain it. c

For the outer end of the box there is a cover 10. The body of the box and the cover are preferably provided at the opposite sides thereof with co-operating lugs 11, 12, through which are passed bolts 13, 13 for securing the cover; to the box. The cover is provided, on its inside with an end thrust bearing surface 14,.which may take the form of a hardened metal plate set in a recess suitably'provided in-the inside of the cover, as shown in Fig. 2. This plate'is held in its recess by a metal fitting. 15, which may be Babbitt metal or other suitable material.

The inner bushing 3 extends beyond the outer end of'the spindle 2 and there is provided with an undercut groove 16 to receive 7 a hardened thrust cap 17 This cap has a Theinvention consists further in the matclose 'fit in the groove 16 and provides an end thrust bearing surface for the outer end of the spindle. The cap 17 is directly opposite the plate 14 and the outer surface of the cap is curved so asto reduce the amount of fric tion between the parts when the spindle moves the cap against the plate. To facilitate removing the cap 17 from the outer end of the bushing 3 whenithe cover 10 isofi the box, I provlde the cap. with a pair of screwthreaded holes 18, 18, so that the removing bac box and extends toward the spindle and having the required clearance with the inner bushing 3 where it extends beyond the rear ofthe box. The inner edge of the ring 19 iscut away or beveled off to provide a wedgesha ed chamber between the ring and the 4 plate 21 in which is located suitable packing material 23 so as to keeplubricant from working out of the rear end of the box. The bearing as shown and described is par ticularly designed for slow moving rolling stock,-such as turn-tables. To mount the box 1 on the frame of such device, I provide the box on opposite sides with laterally rojecting lugs 24, 24. These lugs are so isposed as to be bolted to the under side of a crossmember of the frame of the device where it extends over the top of the box. As shown .in Fig. 1, the lugs 24, 24 are cast integral with the body of the box and are integrally connected across the to' of the box by metal of an axle spindle extending into said box through the rear end thereof, a cover secured over the front end of the box and having an end thrust surface on the inside of the same, a one-piece hardened bushing having a pressed fit on the spindle and pro ecting beyond the front end of the same and there open to receive a hardened cap, a hardened cap made independent of the spindle and fitted against the end of the same in the opening at the projecting end of the bushing and having a rounded outer surface engageable with the thrust surface of the cover, and antifriction bearing means in the box between the same and the bushing.

2. In an assembly of the character described, the combination with a journal box, of an axle spindle extending into the box through the rear end .of the box, a cover see cured over the front end of the box and having a thrust surface on the inside of the same,

In testimony whereo aflix my signature this 5th day'of February, 1927.

OSWALD F. PACKER.

a one-piece hardened bushing having a.

pressed fit on the spindle, saidbushing having its outer end recessed andprojectin -be-' yond the front end of the s indle, a har ened cap made independent of the spindle and fitting against the end of the same in the recessed outer end of the bushing and having a curved outer surface engageable with the thrust surface of the cover and antifriction bearing means in the box-between the same and the bushing.

3. In an assembly of the character described, the combination with a journal box, of an axle spindle extending into the box through its rear end, a cover secured to the front end of the box, a one-piece hardened bushing having a driving fit on the spindle, said bushing having its front end extending beyond the front end of the spindle and there 

